I bought a Dick Landy 144 roots blower setup off a member Jimjimmy that I plan on putting on my 64 Barracuda. It has a basically stock 2bl 273 w/ a .450 hydraulic summit grind cam. A buddy has some j-heads redone w/ 1.88valves with a good valve job. Will these bolt right up? Would I have to notch the cylinder walls? Thinking on the fly here... Would it be worth it?