Re: dual valve springs
thanks Ed. I was really leaning towards the PAC springs (1330 and 1356). I had thought more about the PAC 1330 spring as I don't have as much lift on my 283 (under .850). Still trying to keep coil bind close to .100. I can play with the keepers,/retainers and get installed ht close to 2.0 and end up with about 314 on seat. I too will have to deal with some .200 valves and rocker arm clearance.
Ed
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