Brandog87GTA

What cam with this combo? I will have forged pistons that are 10:1 compression, and a holley 700 DP. What kinda power can I expect?

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Bright red 87 GTA with 350 tuneport. Basic mods such as K&N filter, Flowmasters, Wells MAF, TPIS air foil, Accel 8.8mm plug wires with , Accel distributor cap and rotary buttons.Gutted cat. B&M Shift kit, 100HP shot Nitrous, soon to change over to carburator.

AlkyIROC

Not enough specifics to pick a cam from. Decide what you want the engine to do first. Street use rarely get above 5500 rpm and a race engine doesn't usually start making power until over 3000 rpm. The cam must work with the rest of the components. You also need to know car weight, converter stall speed, gearing etc. Since you have NOS go pick a cam designed for NOS use. Try using some software to chose a cam for your specific car.

In my current big block buildup I went through all the cam choices available from Compcams and Crancams and finally found a grind that works best with my combination. I decided on the LS6 grind. There are many cams out there that will give me more power but don't work as well with my car. Small blocks are the same thing. A cam that works perfect in one car won't work as well in another.

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Stephen's racing page

87 IROC-Z Pro ET Bracket Race Car and knocking on the SuperPro ET class
383 stroker (carbed) with double hump cast iron heads and pump gas
LS6 Big Block buildup now in progress

Best results before the engine blew up
Best ET on a time slip: 11.857
Best corrected ET: 11.163
Best MPH on a time slip: 117.87
Best corrected MPH: 126.10
Best 60 foot: 1.662

Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!

Member of the Calgary Drag Racing Association

ws6transam

If you are backing off from EFI and going to carb, I'd tighten up on the LSA and go 110 degrees LSA. Furthermore, I've really enjoyed my Comp Cams XE262H grind in my 305... It's doing nearly 100 MPH in the quarter mile. It is a split duration cam with 214 degrees of intake and 224 degrees of exhaust duration. Lift is dependent on whether or not you get the roller or flat-tappet version. .501" for the roller version, .470" for the flat-tappet version. I have some sound bytes on my webpage of this cam, when coupled to ported heads, Edelbrock Performer intake, and a Hooker Aerochamber exhaust. I think it's a good street cam, which makes good power to about 6000 RPM. See: http://www.isthq.com/~dan/fcar.html


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Daniel Burk
http://www.isthq.com/~dan/fcar.html
'84 Trans Am WS6/L69
KB SFC, Moser axles, Torsen Diff. PST suspension, Braided stainless brake lines,
5-point racing harness, Koni struts, 11-inch rear disks,Spohn Adj. torque arm,
Ported 305 heads w/1.94"intake valves, Comp Cams XE262H, Griffen alum. radiator,
Speed-sensitive steering conversion, underdrive pulleys, Crane Hi-6 & more. 1.05g skidpad verified.
New best E/T! 14.400 at 98.6 MPH in 88 degree air at Stanton, Michigan.