engine 5.3 lm7 around 9.0:1 compression if i figure it right
862 heads milled 5 thousandths
comp cams dual spring kit
comp cams 281 lsr cam
stock bottom end just freshend up 0 miles
fast 92 intake and tb
tsp 1 7/8 headers
o/r y pipe
slp lm1

flt lvl 4 4l60e trans
yank ss4000 stall
b&m trans cooler
chromoly driveshaft
stock 10 bolt for now with 3.73s

i was thinking the car should be around 420 to 450, havent really seen any vehicles with this setup so un sure how the vehicle is going to act. any input would be nice. the cars i run in town go to the drag strip alot and i know the times they run, just wanting to see if im going to compete.

thanks

 

While you had the engine out you should have bored it out to LS1 specs and maybe some 243 heads and you MIGHT have gotten those hp numbers you were hoping for.. But as it sits now your looking at a little north of 360ish rwhp