Chevelle Tech - View Single Post - Finding Vacuum Leaks
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post #6 of (permalink) Old Jul 19th, 19, 8:54 AM Thread Starter
Tech Team
Join Date: Jun 2013
Location: Boston
Posts: 757
Re: Finding Vacuum Leaks

No luck yet. But I'm just seeing your advice now. so I'll try your suggestions this weekend. I was trying starting fluid around the intake and tb mount and no change. I'll try picking up some propane too. Should I disconnect the booster and plug the hole to test the booster? Right now the booster and pcv are T'd on the intake. All vac holes on the FI are capped.
Would a header leak cause this? I do have some ticking under the hood..

67 Chevelle 454, M21
Gen IV 454 (out of C30 ), 390 heads 1.88/2.19 valves by Vortecpro, with ISKY Hyd Roller cam (at 050 218 int./228 exh, lift 530 int./552 exh.), RPM performer intake, Fitech 600HP, Dougs headers, and M21, Gear Vendors OD, 3.73's, UMI Suspension, Viking coilovers.
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