What springs come on eddy performer RPM heads
It wasn’t hard to tell back then when I bought it using the recommendations from the Erson cam catalog, 1992 I think it was. That’s how many picked cams back then, let’s just hypothetically say by those that used platigauge vs. having micrometers, etc. Was in a bone stock low compression mid 70’s 400 I got from a junkyard, to replace the original 383 that developed a rod knock. Put a Factory 4-barrel intake, Holley 600 vacuum secondary, MP electronic ignition with vac, factory advance curve, maybe 8 before initial, Blackjack 1-5/8” headers, 2-1/2” exhaust through Sonic Turbos dumped at the axle. Bone stock 727 and converter, no stall worth anything, 33” tires, 3.54 Dana. Big *** heavy *** truck. Mild rump to the strong idle, vacuum? No idea. It idled, rev’d, pulled accelerated, pulled grades, made passes in a flash. Good, great, awesome, snappy. Whatever you want to call it. I didn’t have special measuring calculations, tools, theory, years of study, experience, or the internet to validate anything. The cam worked great in that setup because I went to super shops, read the catalog, decided on that TQ20 because it was listed as “The Performer” and also gave descriptions on some of their cams and what complimentary components to run with them. And it mentioned the concept of the cams using specs that were geared to that eras low compression engines. That’s what I did, and miracle of miracles it worked. He’s got it. We all can inundate a person with the technical aspect which is fine, I’m into that stuff too. Its all solid, valuable, incredibly helpful to us all. But maybe, just maybe for some its all just too much technical, they just want to know if what they are thinking or have at the moment is gonna work and work good. Could be in this case, I could be wrong. Just one way of looking at it without getting too technical. That’s ok and a valid opinion, no? Of course there’s always better, everything. So the OP asked about this particular cam, I give my actual usage and opinion. Here’s the truck it all went in:
My real world experience:
It wasn’t hard to tell back then when I bought it using the recommendations from the Erson cam catalog, 1992 I think it was. That’s how many picked cams back then, let’s just hypothetically say by those that used platigauge vs. having micrometers, etc. Was in a bone stock low compression mid 70’s 400 I got from a junkyard, to replace the original 383 that developed a rod knock. Put a Factory 4-barrel intake, Holley 600 vacuum secondary, MP electronic ignition with vac, factory advance curve, maybe 8 before initial, Blackjack 1-5/8” headers, 2-1/2” exhaust through Sonic Turbos dumped at the axle. Bone stock 727 and converter, no stall worth anything, 33” tires, 3.54 Dana. Big *** heavy *** truck. Mild rump to the strong idle, vacuum? No idea. It idled, rev’d, pulled accelerated, pulled grades, made passes in a flash. Good, great, awesome, snappy. Whatever you want to call it. I didn’t have special measuring calculations, tools, theory, years of study, experience, or the internet to validate anything. The cam worked great in that setup because I went to super shops, read the catalog, decided on that TQ20 because it was listed as “The Performer” and also gave descriptions on some of their cams and what complimentary components to run with them. And it mentioned the concept of the cams using specs that were geared to that eras low compression engines. That’s what I did, and miracle of miracles it worked. He’s got it. We all can inundate a person with the technical aspect which is fine, I’m into that stuff too. Its all solid, valuable, incredibly helpful to us all. But maybe, just maybe for some its all just too much technical, they just want to know if what they are thinking or have at the moment is gonna work and work good. Could be in this case, I could be wrong. Just one way of looking at it without getting too technical. That’s ok and a valid opinion, no? Of course there’s always better, everything. So the OP asked about this particular cam, I give my actual usage and opinion. Here’s the truck it all went in: