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Old 09-08-2009, 11:47 PM
"Puddles the Pontiac" "Puddles the Pontiac" is offline
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Join Date: Dec 2005
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thanks for all your help and i do plan to check out the mentioned web sites.

as for tuning, the plugs look good on all three levels of the porcelain. as well, the electrode is showing that i do have the correct range plug. after rechecking, i had found some of the gaps to be off. all are reset to .045.

an issue i am having is that i am only getting about 10* of mechanical advance (there are no provisions for vacuum adv.) i am looking for a weight set to get me more, i do physically have more room for more advance (via the slots), but the weights are stopping early. i am looking around for stock weights now.

i know i cannot compete with a wide band. but my idle, off idle is great. not a stumble or pop to be found. the engine will "bark" with a quick stab at the pedal. not to mention the thing will start like a new, fuel injected car. i do have serious traction issues and this car is quick.

but the miss is still there. and it is a light miss (not a surge) which leads me to believe it is in the ignition. i can best feel it during "cruise" situations. i plan to change the coil and module. i can see nothing physically wrong inside the distributor.

fyi, i do have the new cam in (290b-6). the cams lobes all survived break in. at a 106 lsa there is no issue with a lack of dynamic compression (thanks screamingchief for the cam lesson last year). these are 93cc 6x-4 heads on a .030 over 455, zero deck. you are right to say i am guessing the static compression ratio when i guess 9.75 to 10-1. and i am going to use a friends inductive light when setting timing. i will get back to all with any new results. again thanks to all.

p.s. does it make anyone else nervous to see their oil pressure drop to 10lbs at idle? i have never gotten over that.

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