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Old 11-23-2007, 07:41 PM
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Originally Posted by 383
Hi,can anyone tell me the highest compression for 102 octane fuel. Could 12.5 with a big cam do it or not?
The edelbrock street tunnel ram,does it need a high compression?
The isky Z-60 grind cam is old school but it works great with a tunnel ram and 10.5 compression. I used it in a .060 over 327 with 4-speed and a 4:56 gear.

Here's the cam specs. High performance. Street/strip. Lopey idle. 3200 Stall. 4:56-4:88 axle ratio. Up to 800 CFM Carb. 10.5-11:1 compr. RPM-Range (3500-7500) Valve Lift (.548 .548) Valve Lash hot (.016 .016) ADV Duration (292 292) .050 Duration (259 259) LC 108...The motor flat out beat the ground (sounded to nice) and it wasn't to bad driveability wise either. Probably wouldn't be as much fun with an automatic.
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