big block conversion in my '72 k5

[ntd]

I will post some pics as soon as I take them.
I am in the process of putting a big block 402 into my '72 k5. we dropped it in the hole last weekend and last night and again this morning I finished cutting holes in the firewall for valve cover clearance (tall valve covers no less)
well the big block fits in there kinda tight in spots but it fits.
Next I need to mock up the headers and check for clearance with the frame and engine crossmember. should be fun.once that is done then comes fabricating a bracket to mount my hydraulic clutch slave cylinder to on the bell housing, once again fun stuff.
I can't wait to get it buttoned up and fired up. motor is bored 30 over to 408 with the domed pistons, kinda aggressive cam, roller lifters,roller rockers,nice aluminum intake,headers to dual flowmasters. grunt grunt