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Do you have more info on those valve springs? I can't find anything, the brand seems to be Speedmaster now, which are overseas copies. I see a PAC box next to them, those would be very high quality springs, but they look a lot shorter?

Springs are very specific for installed height, diameter, spring rate, etc. Springs for .650 lift for a solid cam won't work for a hydraulic cam, and a hydraulic roller spring will be too stiff for a flat tappet hydraulic lifter. So you have to make sure you have the right combination or it will just destroy itself.

If you can find an old Performer "RPM" intake, it will make a lot more power and lose almost nothing down low. The regular performer is almost a stock replacement version.

What is this engine going in, and what are you using it for?

Pistons and compression are easy, I use my app to calculate it and make sure everything works together. I can help you with the cam and pistons for your application.
 
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Is there something we said wrong?

If you need pistons and a cam I can help you with that, it's fine if it's cast pistons and a hydraulic flat tappet cam for a budget build. I'd just hate for you to spend hard earned dollars on a new cam for it to be destroyed by the valve springs, which is why I help my customers make sure everything works together. You may be better off with stock valve springs depending on what cam you want to go with, you don't need too much lift for those heads anyway.

On the intake a used RPM will run quite a bit better than a regular performer if you buy and sell for the same price since you cleaned that one up, that's all I was saying, you definitely don't need a new intake, there are plenty out there or you can just use that one if you like it.

The first V8 engine I ever built was actually a budget 454 over 30 years ago with my father we threw together with mostly stock parts and a hydraulic flat tappet cam, Edelbrock dual plane RPM intake, and long tube headers, we first put it in my brothers C10, after that, the engine was in so many different vehicles over the years, trucks, cars, boats, because it just plain ran well across the RPM range.
 
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Wow. Is it uncouth to be helpful and make a lighthearted joke at the same time now?

I thought it was funny too and folkenheath has always helped me with both tech and sales when I've asked. Would recommend without a doubt. 10/10!


Why feelers get hurt cucv_m1008?
 
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