Don Terrill’s Speed-Talk

Here is a photo (not mine) of a Harmon Collins motorcycle roller cam and lifter (same lifters)

Hi Joe, those lifters are solid, they are .500, the bronze body you see is so they can be inserted into a FE Ford lifter bore, if these were used in a Y Block the bronze body is not used, there was a tool that cut the lower part of the bore for the wheel on the lifter, the wheel is very narrow, ther...

Here's the Harmon Collins roller lifter setup. With the Y Block you didn't use the bronze guide, these look very much like a modified Harley Davidson tappet.

Harmon and Collins made a roller setup for the Y lock Ford (good luck finding one now)

Thank You, I going to compare that with mine.

Hi, that would help ALOT, I can figure it out if I know that the setup I have is correct.

Thanks Cliff

I bought it and have never been able to make it work, I think I need a walk through of how to use it and what to look for.

Hi guys, I have a JKM600 flow bench that I just can't figure out what to do, I got a vacuum hose diagram off the internet and it looked like mine were installed wrong so I changed them to match the diagram, no luck, I think I just made it worst, can anyone that can help?

Hi guys, I've been reading this, now I'm starting to change my thinking on break in and oils

https://540ratblog.wordpress.com/

I've been running a 650 DP on a blow through system (street car), I just changed to a 3310 Holley, boost comes on the carburetor goes rich secondaries do not open, before I tear into it what do guys think? I'm running about 7 lbs of boost that comes in about 2800RPM. the DP was very hard to tune for...

More work take a look, http://forums.y-blocksforever.com/Topic136059-34.aspx

Guess what engine

Hi, just about to finish my Supercomp rear engine dragster (234" Spitzer) any ideas how to set up the wing? (angle)

It may suck some air at the end of the run.

Anyone have or know flow numbers?