And just to add to the mess..
You do not need a Lightning computer unless you want to run the L 4r100!
You have to run your stock computer in order to operate your 4R70W!
Your good with a single 255 pump. If you add a KB boost-a-pump you should be good up to 500rwhp.And that would put you pretty much at the limit of the stock block.
Phil
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Built Lightning block.
Stage 3 Ported heads. high performance Cams
Kenne Bell L upgrade blower 16 PSI
DMR Cog belt system
Kooks long tube headers
BTS race built 4R100 tranny
100 shot of nitrous
best 1/4 to date.
60' 1.68
11.76 @ 116.17