Stroking a 318 to a 390

This project went backwards today.......So i have this crank....

Mopar Performance Heavy Duty Cast Crankshaft

Put crankshaft in last weekend ...did not have a woodruff key on the crank until today....turns ok...but somewhat tighter than i thought it should....so i read the description at mancini racing

Requires Narrow Bearings: No.......

so had used standard FM full groove main being...
today....i got the pistons in....and using CL77 cb481 rod bearing...I put the even side in...no biggie..
move over to the odd side...number one goes in and the engine will not turn....yeah....it needs narrow rod bearing...so i replace all the rod bearing with narrowed bearing...and as each odd side piston is added...it gets harder to turn...
finally after 7 piston are in...i can not turn it over...lol

so i read the description again...lol

these Mopar Performance special heavy-duty crankshafts feature radiused fillets for the small block engines......and knowing it is SCAT i go to Summit and look at cast crank
Requires Narrow Bearings:No......does not mention the radiused fillets .........

to me it looks like it has radiused fillets.....but i getting older by the day......

put big plastic bag on it and went home....