Contender #1
86 Iroc w/ 6point cage with every tubular chassis part you can buy including the K-frame
355 TPI W/ ported intake siamesed runners
elelbrock aluminum heads ported
58MM throttle body
forged internals
hot cam w/ 1.6 ratio rockers
6speed w/ 3:73
17inch rims
with and without 75 shot of NOS

Contender #2
91 Z28 with 6 point cage and subframes
LT1 with stock ported aluminum heads
stock bottom end
CC 306 with 1.6 ratio rockers
58 MM throttle body
stock injectors
stock fuel pump
6 speed w/ 3:42
17 inch rim

 

Assuming both have full exhausts and have had the necessary dyno tune, car #2 will win easily. The CC306 is a monster cam and works well with the ported heads. The LT1 intake is also up to the job of supporting that amount of air.

The TPI is still restricted with the stock TPI even though it is ported and the hot cam is pretty mild and not well matched to the induction.

That LT1 could make near 450hp with a flat powerband and I don't see that TPI making more than a peak of 340hp or so.

 

the Lt1 Has full 2.5" duals and the TPI has 3" mandrel so its pretty much a wash. the TPI also has a 75 shot of Nitrous? I figured that would pick up some of the slack.

 

The 75 shot will help a lot. I think that LT1 is starved for fuel though. You will be hard pressed to feed that motor with the stock pump and injectors. I take it neither combo is properly tuned?

 

well pcmforless is doing the LT1 and the TPI is DIY prom burning. as far as the fuel system on the LT1 that will eventually be upgraded to 28# injectors and new pump. but in this race it hasnt been upgraded yet