The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

Tom · 06-21-2018, 03:16 PM

Its run as good as you've known it to, doesn't mean its running as good as it can. Gregski is correct, many factors affect when you'll hear pinging/detonation. I ran 9.4:1 compression with oem gaskets and 87 octane because it was an oem take out truck vortec converted to carb. That doesn't mean the truck we're talking about now won't get better mileage and/or make more power with more adjustment to the timing curve. Just because vortecs chamber can handle more timing doesn't mean they like it.

06-21-2018, 03:16 PM	#35
Tom driving is in my blood Join Date: Dec 1999 Location: Mesa AZ Posts: 5,692	Re: Timing Curve Advice Its run as good as you've known it to, doesn't mean its running as good as it can. Gregski is correct, many factors affect when you'll hear pinging/detonation. I ran 9.4:1 compression with oem gaskets and 87 octane because it was an oem take out truck vortec converted to carb. That doesn't mean the truck we're talking about now won't get better mileage and/or make more power with more adjustment to the timing curve. Just because vortecs chamber can handle more timing doesn't mean they like it. __________________ -78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me.