["Puddles the Pontiac"]

Geoff, i had that happen as well. they are comp lifters that came with the cam. with break in lube (from comp). i run Rotella T oil. and checked the lift to make sure a lobe didnt get wiped out. the miss itself is irregular, but its constantly happening. i also noticed the miss with the timing lights light. leading me to think it is electrical. btw, i will be using a different light to set timing. thank you for the responses so far.

["Puddles the Pontiac"]

well, after replacing the cap and rotor i managed to get the miss taken care of. now i am onto rethinking my cam. i am going to take some of 'chiefs advice, run it down the strip and see where it is really lacking. if all else fails, i will order another 290b-6. does anyone see any big issues with my combo as it stands? what should this run? i hate that my '97 LT1 trans am feels stronger then my '65 Lemans with a 455.

[screamingchief]

Dont changes cams till you get a chance to spray it.

Like I said,it may be just the ticket for that use.

I was just saying it's not odd that it felt a little soft,especially if it has'nt had a bunch of tuning time on it.

Easiest this to do is run some lash loops,tighten up the intake lash and see what happens,and go back on the intakes and do just the exhausts,then try tightening up both together,lots can be learned just by playing with the lash.

Then you experiment with the installed centerlines and rocker ratios,that's the whole beauty of solid cams,they are they're own tuning aid.

Only after exhausting all those avenues,should another cam choice be considered.

It's long tedious process,but the results often speak volumes about what the combo needs for improvement.

Did you ever get the timing deal figured out???

HTH.

["Puddles the Pontiac"]

thanks for the info, as far as the timing, i really dunno. i dont trust my digital light and cant find anyone with an inductive light. i am going off of how the engine cranks and runs. same with the carb. i am setting idle mixture off of rpm, power valve size by feel and jetting from plug reading. the engine revs like a monster and feels good all around untill i get on the road. it makes alot of noise but the punch just isnt there. even above 4000 i get nothing. it feels like it did when i had messed up installing my last cam. i found i had installed it (the previous cam) wrong using a 9 keyway crank sprocket. after lining it up the right way, it became a monster. but i have checked this cam and it is right (as far as installing straight up). and another issue i am noticing is it is losing its tune when it gets warm. i have a whole weekend to keep on this thing. again thanks for the help.

["Puddles the Pontiac"]

well, its been nearly a year now. and boy do i feel silly. my lack of power came from bent valves. yup, i managed to install the pistons with the valve reliefs down. lack of experience for sure, but wait, the rods were positioned correctly on the crank. ah, the machine shop installed the rods wrong on the pistons. i did check for p to v clearance, but failed to do so when i switched to 1.65 rocker from 1.5. that was just enough to bring piston into contact with valve. lesson learned for me and the machine shop. i did swap back to the 290b-6. and am pretty happy with it. i installed it straight up to aid with running on pump gas. it worked. but wait theres more...

my miss is still there, for the love of god it is still there! not to mention, my new found power seems to be eating up my trans. guess i will be learning how to rebuild a th400 soon. and i think i will have to just try a new distributor. anyway, live and learn.