Hi all, Ive got an XE268H cam and lifter set that i want to run in my "73 400 powered "69 bird.Its a stock 4bbl engine with headers and TH350. The heads are 7j2's..my question is what comp valve springs would suit these heads. Machining the heads is not an option as they are on the "replace list" when some better heads become available,(hard to find around here).
