unwanted timing changes
i have a prestolite distributor on a carb'ed 454. (the electronic from points kit with external coil.) last week the ignition module gave out. it's the horseshoe looking kind under the cap. 98$ for the module, ouch. today, i was setting the timing. brought #1 cylinder to tdc on compresssion stroke, heard the poof, saw the mark on balancer reding 0*. made #1 where the rotor was pointing, nothing special. but when i went to tighten the distibutor down after setting initial at 10* after warm up the motor bogged down. timing changed at least by 10* from where i had it set. engine started running bad, missing etc. the timing light was still hooked up to #1 wire and it started firing intermittently or not at all until i revved the motor way up. the distributor wasnt loose, it was snug, just not tight. i think i may try a different distributor. i couldn't get it right with the one in there. at least not after i tightened the hold down clamp. any other ideas?
|
. set it at 10* and tightened the hold down clamp and the motor bogged like the cam was walking. the timing went from ten to around twenty and started running like crap and wouldn't act right no matter where i put the timing. very erratic. 
