[Gach]

Originally Posted by Shockwave78

I actually did check the base circle difference, the new cam is 1/8 inch smaller than the factory cam

Smart move. Was you able to check valve train geometry. Other question are those same valve spring as the old cam ? Or you put new ones in.

[Shockwave78]

Originally Posted by Gach

Smart move. Was you able to check valve train geometry. Other question are those same valve spring as the old cam ? Or you put new ones in.

I have not checked the geometry yet, I replaced the valve springs with the recommended crower springs with the new cam.

[Gach]

Originally Posted by Shockwave78

I have not checked the geometry yet, I replaced the valve springs with the recommended crower springs with the new cam.

Great ! You did your home work thats for sure. If and when you can check valve train geometry. With the shorter base circle being 1/8” shorter. Its a good possibility, being push rods are same length as old cam. That its not opening the valves all the way. Making push rod seem shorter

[Shockwave78]

Originally Posted by Gach

Great ! You did your home work thats for sure. If and when you can check valve train geometry. With the shorter base circle being 1/8” shorter. Its a good possibility, being push rods are same length as old cam. That its not opening the valves all the way. Making push rod seem shorter

I will add that to the list of tests, taking that into account, the valve lift would be .297/.321.

[Shockwave78]

Just rough checked the valve timing per Cliff's directions and it seems to be spot on. I did a compression test on the rest of the cylinders and they all returned 150, I'm not sure if the 175 was a fluke, or that was a side effect of the rockers being adjusted a certain way. I have studs arriving tomorrow as well as poly locks because I was planning on doing that anyway. I will be doing a compression test after I get the new studs installed to see if that makes a difference. My next step is pulling the carburetor off to see if there's any junk in it from sitting