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08-04-2006, 11:41 AM
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68 Coupe 289
Join Date: Apr 2005
Location: North carolina
Posts: 44
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Need timing help
Hi everyone, thanks for all of the help in the past.
I just got my rebuilt 1968 289 installed. Pro Com heads (shaved), Scorpion Roller rockers, Edelbrock RPM, Holley 650, Federal pistons and mild cam through long tube headers and flowmasters. Also have a 2500 stall converter but haven't changed the gears yet. So I have been fighting with the timing. I can't use factory numbers on the new engine but it's acting strange. Highest RMP setting is over 40 degrees advanced. Anything over 25 and it is hard to start. It seems to run pretty good aroung 20 but I just noticed that when I hook up the vacuum hose to the distributor, the rpm's go up about 10 degrees. Is this OK? Thanks for the help. First cruize-in for me this summer is saturday and I want it running good. Jaime
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