this is my friends car were working on. its a 87 trans am stock weight.the motor is a 385 cid 10.5:1 compression comp cams xtreme energy 284 hyd., stock 906 vortec heads air gap intake,750 dp speed demon carb. its a 5 speed car with 3.45 rear gears and 26 inch slicks. im thinking mid to low 13s ,somwheres around 105 mph. think im close? the car ran 14.2s trapping 100mph last summer with 882 heads ,compcams xe268 cam,torker intake,edelbrock 600 carb, on street tires.

 

Yeah my guess would be low 13's, given the mods that were listed. As far as the trap speed, i suck at making that estimate so I will refrain from making that guess.

 

low 13's sounds about right to me or maybe even high 12's if he can hook well with the 5 speed.

 

goodness id hope you could get it into the twelves, I run mid 13s with a 305 and 1.84/1.5 valved heads at almost 105

 

If it were an auto car I would say high 11's, since its not its hard to tell where he will be at. I had a friend running a similar setup, only the Edelbrock Performer heads (170cc runners, similar flow characteristics), TH350 and a 3000 stall and he went 11.8's with the XE284 in a 383.

 

i had a 906 headed ,stock block 350 with a 284xe, gm intake,650dp,flowtech shorties,3200rpm stall,and 3.27 gears and it ran a 7.99@85.2 with a 1.69 60' on dr's. a 7.99 is roughly equivalent to a 12.45@108,

 

7.99@85.2 with a 1.69 60' on dr's. a 7.99 is roughly equivalent to a 12.45@108,

This depends on a LOT of factors...

My car has gone 7.94 @ 85.8 and the 1/4 time was 12.56 @ 105.8. Some cars pull harder in the top end then others. Weight, gears, tires, etc all play a huge roll...

 

he will be happy to hear you estmates..thanks