I've never race it but I have a 351c-4v thats built. Everything under the hood has less then 5k on it. 4 speed top loader. Traction lock rear end. I dont actually have the ram air stuff. It disappeared before I got the car and from a performance stand point I just didn't think it was worth the expense plus my MSD pro billet distributor wouldn't fit the ram air air cleaner.
What year is your car? By Boss 302 are you saying you made a Clevor because thats what the boss engine were Windsors with Cleveland 4v heads. 12.7 aint bad for a 302 in those big assed cars..

 

ya mines a 72 coupe factory w 302 2v c4 trany ac dont rember gears though. that the factory stuff. now what i did took that 302 out put rhs 351 heads on it (the other motor 4v) i got a crate boss 302 4v stamped 1969 4bolt main 302w block 351c heads at a swap meet here in san antonio for 150 bucks an a 18 pack of bud light hard as hell to find headders for but i got me some hookers they made them found a wrecked 71 that had a blowen 429 to i took that 4bolt main of of it welded it to mine put kyb shocks and springs up front, its droped about and inch or two, i did some engine work for a guy for free he has his own tranny shop so he built my tranny, i have the build sheet some where, well in the boss i put 1.60 exaust valves intake i think are 2.02 erson cam with a .505 lift, put front power disc breaks up front drilled and sloted rotors with semi metalic break pads (stops on a dime). crager ss rims with the tri spinners, interior i redid the seats origional, that vermilion red and new headliner and carpet, i was thinking of puting a msd distribuator in but for 99 bucks i put that petronics ignition in never fails, knock on wood. i have taken it to some local shows got like 4 or 5 trophies, i did get a 1st place ofr 71-73 though im happy about that, im 24 got a college degree in construction management from UTSA but i make more money as a journeyman plumber and i like my job had my stang from when i was 17 drove it every day till i got this truck a month or two ago, she runs good sounds great. from the factory shes not a gt or anyting its a code f but its fast as hell, well fast as i want to go in a 3500lb car form the 70s with no handeling and yes its is cramped as hell in there with that boss 302

 

well sir i did this and well...nothing.
thanks for the help though im just getting a little fustrated with it all, im goin to hit it this weekend

 

yes thats what im trying to do now, i think im going to get some of that bg44k and put it in the tank im almost empty so need to fill it up any way, it seemes like the heavier the load the less it wants to do. when i increase rps's the fule pump also pumps harder, that is correct so i might have cloged injectors, im getting good fule pressure so i hope the bg44k will do the trick, i did also find some cracked vaccume lines so im replaceing them as well
thanks for your help

 

THAT is probably the reason for the lean codes!

Your lack of power makes me HIGHLY suspect the exhaust - like clogged cats or a collapsed muffler baffle or pinched pipe. I'd recommend an inspection at a muffler shop.

 

ok ill do that this coming weekend hopefully, if im not at the nationals, the odd thing is that all this happend at once, no warning or anything just cranked it up one day and bam! drived like crap...if its cloged can i hit it with a rubber mallet?...as long as i dont dent it or hit it to hard there shouldnt be a problem right.......? i checked for a dent or pinched pipe nothin its a 4x4 factort like 2 or 3 inch lift

 

i did take it to the dealer today and the head mechanic drove it around he told me fule pump. that will give me that knocking i hear at high rpm and if i floor it the pump cant keep up so thats why half pedded does a lot better at getting me there. so ill check fule presure he said it is going to be at around 100psi well.. thats what he told me

 

Just a friendly comment, I want one of his crystal ***** to be able to tell that without checking.
And try about 40 psi at the fuel rail.
The pump is capable of 100 psi but seldom gets that high in real operation unless the return line is pinched down.
Check fuel pressure, then pumping volume if not sure/fuel filter, before going to all that work and expense.
Good luck.

 

ya ok i thought so to.. 100 psi sounded aufley high. ill probley do that sea foam treatment before anything else, then go from there.

 

well....... i did the sea foam treatment, smoked like hell, but didnt help anything all that much. so im at a loss... i am goin to flush tranny this weekend (its due) and use that bg44k in the tank see if its an injector problem..

 

make sure to change your oil after using sea foam

 

You should plan on spending some time learing about the vehichles you own or you will hassle everytime there is a problem.
As of the moment we can't even help you.
Drain the tank out and fill with fresh gas, then change the filter.
Do some time getting a code list and what they mean so you begin to understand what's going on.
If you can't translate advice into self help, there's not much we can help you with.
If the gas was bad, the first filter was bad, then some of that may have gotten into the fuel rails.
Clamping hoses is a waist of time. Either the hoses are good or they are not.
Sorry to get on your back but it's time to advance a little and not live in the past because it will never come back or be useful.

 

1. Drain the tank out and fill with fresh gas, then change the filter: did it
2 not getting a code any more still drives the same
3 If the gas was bad, the first filter was bad, then some of that may have gotten into the fuel rails.: drained tank, new gas good gas, new filter, going to run 44k to clean rail and injectors,
4 make sure to change your oil after using sea foam. i did

goin to give a reall good cleaning to maf sensor this weekend
and i can check fule rail at idle good pressure, but i cant obviousey when im in gear goin 55 trying to get on the the hw goin 70 slowley

You should plan on spending some time learing about the vehichles you own or you will hassle everytime there is a problem.
i am, that is why im am here asking questions to the best of my ability, no, im not a master mechanic but i am very mechanicley inclined. i have mr chiltons to kinda guide me have read up on many of the problems thats why i have come here for further input and gain some knoledge. ( i know my spelling sucks ***) that is why i thought this forum was here, kind of a peer helping peer.

there are no stupid questions just stupid people

 

Have you verified that you don't have any exhaust restrictions - like a clogged cat?

 

no i have not, nor do i know how to check it. do i take the cat off? theres no kinks in the line the exaust sounds fine, its factory and i cant smell anything but when i do the tranny flush this week end im goin to have the shop look over it all