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Unit 5302 · 11-21-2004, 12:35 AM

Your current combination should make over 300hp without a problem, if it's tuned. I hope you have valvesprings that are better than the OEM type on those GT-40P's. The OEM springs are a little weak and good for only up to .500 lift. Your E-303/1.7 combo will have .529. Also, GT40P heads lose flow after .500, stock so until you do some headwork, don't expect to see much of an advantage from the 1.7 rockers.

With the 3.27 gears, the car will be capable of 12s, whether you can drive it there or not is another question entirely.

The day a decent head/cam/intake 5spd fox notch can't get better than mid 13's is the day it needs a tune badly. It should be capable of running a mid 13 with a couple of bolt ons.

11-21-2004, 12:35 AM	#12
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	Re: what do you think this combo will run? Your current combination should make over 300hp without a problem, if it's tuned. I hope you have valvesprings that are better than the OEM type on those GT-40P's. The OEM springs are a little weak and good for only up to .500 lift. Your E-303/1.7 combo will have .529. Also, GT40P heads lose flow after .500, stock so until you do some headwork, don't expect to see much of an advantage from the 1.7 rockers. With the 3.27 gears, the car will be capable of 12s, whether you can drive it there or not is another question entirely. The day a decent head/cam/intake 5spd fox notch can't get better than mid 13's is the day it needs a tune badly. It should be capable of running a mid 13 with a couple of bolt ons.