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i thought you would of injected it LOLYeah I've done it and it works fine (my bores are 30thou over), haven't really tried it out to much yet. Bit boggy down low but as soon as ya get goin she revs pretty good. I'm just using a stock EFI cam and a quaddy on mine tho. If I get another set of heads I might mock one up on a std bore 253 block and see if the valve will clear. But might not be for a while.