To find a boat part if available there will be a price. 
To locate engine part look at the figure and ref # send me a email boatetrade@aol.com for price and avaiblity 
NLA search part box. 
The throttlebody and ecu, and MAF sensor and test $300 + plus return shipping $60. 
Exhaust manifolds avaiable. 
Capt Rick 
4077014430