Its just for my pleasure. Dont have 4x4, so no off roading. Love the 63, love the big block and like the gear drive system, so I plan to merge them together. The engine is probably overkill on what I need for hp, but its my toy...so I want the 425hp big block. Dont plan on running at the track either, but I would like to build a solid engine. Haven't gotten to the cam and lifters yet..but for now planning on a Lunati Voodoo 227*/233* .522"/.538" or 219*/227* .530"/.542" hydraulic flat-tappet cam/lifters. I dont have tons of experience w/picking cams, but would like 0-5500rpm and that killer big block choppy lope. Also...the two plugs on the front of the block by the cam...your saying to drill the left one as were looking at the block?