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Eman · 09-09-2021, 09:13 PM

Cooler fittings are 6AN with teflon braided line to a stack plate cooler.
I pulled a core valve body apart and it has a .489 boost valve. I haven't seen any springs listed by pressure looked at TSR,BTE, and TCI.
Car is 3,000 lb bracket footbrake car with a 355 SBC runs 6.60's to 6.70's in the 1/8th.
What do you think Keep TCI spring and the larger boost valve or smaller boost valve? Stock spring with larger boost valve?

09-09-2021, 09:13 PM	#7
Eman Member Join Date: May 2014 Location: E TN Posts: 473 Likes: 16 Liked 133 Times in 76 Posts	Re: Need some Powerglide tech info Cooler fittings are 6AN with teflon braided line to a stack plate cooler. I pulled a core valve body apart and it has a .489 boost valve. I haven't seen any springs listed by pressure looked at TSR,BTE, and TCI. Car is 3,000 lb bracket footbrake car with a 355 SBC runs 6.60's to 6.70's in the 1/8th. What do you think Keep TCI spring and the larger boost valve or smaller boost valve? Stock spring with larger boost valve?