Well I hope it's worth it SB To Big Block

A few things concern me. My apologies if I sound down on it, but I'm a firm believer in reality and I think you are being sold a bill of goods here.
I do not believe the heads will be anywhere near what is claimed. Factory non-max wedge heads, even pro ported, dont reach 350. There's not enough intake port, intake manifold, or cam to make anywhere near that number. Assuming the heads are above average porting quality they might make 290/300. Average being about 20cfm less. The intake choice is poor IMO, same with the stacking of 4500/4150 adaptor and spacer. All that plenum and there's no port in that intake. B wedge intakes are harder to come by, but it should have either the Indy with an open, or M1 with the adaptor on it to make some real numbers.
The front bars were done "lazy". The purpose of those bars is to trasfer energy from a frontal crash to the cage. I'm assuming the cage is going in but it's not visible in the pics. The reason I think there's a problem is the angle they are on... That will not transfer energy properly. Normally these bars approach the cowl perpendicular to it. Then eitehr pass through and go to the cage, or are plated as you see and the interior has similar plates and the bar comes straight back. I think as it sits, you have set yourself u pfor cowl cracking issues if you don't ever hit anything, and god forbid you do, that bar will just punch through the cowl cap and the front end can fold up.
Lastly, the strap being used as an engine plate... Not anywhere near strong enough. The reason plates (even stel ones) are wider is so they don't twist. Steel elephant ears are cheap....

Looks like some serious hardware there. I'd hate to see something happen or you get set up for eventual trouble.
there is a 1/4 plate welded in front of the bars I have done some major grinding to try and make it look nice, shock towers are trimmed and welded to the bars also welded to front of frame, yes motor mount is a little cheap but Rays 440 dart is set up the same way and he turning high 9's so I ran with it I like the motor plate look myself, I'm putting alot of trust in Ray he has been running big blocks and hemi's for years ,besides my motor and the 440 in the dart he has 6 other motors put together on stands, and many many sets of heads alumin. rods pistons cams pics of past cars dyno sheets of motors pulling any where from 450 hp to alittle over 750 hp and yes with steel heads that he ports and polish him self adds over size valves, Intake I want the M-1 but right now I'm following his lead, so far my cost in this motor is a little over $2200.00 and I helped put it together I know for a fact everything is new, so in my Duster should I be able to run low 10.0's or ? and I think the cost is good, I had over $5000.00 in my 340, Thanks for all input and I will work on front end safety, my wife likes going fast and her safety is NUMBER 1,