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Mancini Racing has 509 cams. In I believe flat tappet and solid flavors. But don't quote me on that. I know Flat tappet for sure.
https://www.manciniracing.com/mrepugrcamli2.html
PRODUCT DESCRIPTION
Fits: B/RB 361-440, 292/509 Hyd Flat Tappet
.509" / .509" Lift. 248/248 Duration @ .050" 108...
Good to know all mighty internet search god. Thank you for correcting me. Now all is right in the world and you can save a paperless forum from yet another paperless post that doesn't effect you in any way shape or form.
Another cheaper alternative is to add a return line bung to the tank. But you still have to run a return line. Here is the product link. I thought about this too but went with the holley in tank.
https://www.performanceonline.com/fuel-tank-return-line-bung-kit-universal/
I installed the same thing on my friends GTX.. So much quieter than the pump and filter pack that comes with the master kit. And the best part was no return line.
If you use the Holley Sniper in tank pump you can dead head the system with no return line.
https://www.holley.com/products/fuel_systems/fuel_pumps_regulators_and_filters/fuel_pumps/efi_fuel_pumps/efi_in-tank_pumps/parts/12-314
I just purchased the 284/484 for the 440 I'm putting together. I'm currently waiting on the cam which was 4 weeks out. They didn't say that on the site when I paid for it.
I assume they get them in batches of 10 or so.
Mancini is selling their Purple cams in these flavors.
B/RB 361-440, 474/280 Hyd Flat Tappet
B/RB 361-440, 284/484 Hyd Flat Tappet
B/RB 361-440, 292/509 Hyd Flat Tappet
B/RB 361-440, 312/590 Mechanical Tappet
I cant recall the actual amount of time but there is curing time for the por15 then shaping and sanding. Probably no more than 4 hours of actual time not including the curing time. But I may be way off on that.
The one in the Roadrunner was in worse shape than yours. I used por15 putty and many hours of sanding and shaping but the end results are good. I'm your neighbor lol..