Good morning Rick and welcome to the DOW.
" I currently have a 95 Nissan Frontier with a 4 Cyl and I believe it is a MPFI.
Any thoughts on that truck…or get something else."
I think just about all internal combustion engines will run on woodgas . The issues are some will operate much better than others , some will be much easier to convert and some will be much easier to maintain .
I don’t know enough about the Nissan to give an intelligent answer to the question. Using the vehicle you already have is usually a positive move but there may be a lot of negatives involved also.
One question in choosing a vehicle is what will you be doing with it and where will it be driven . Also the quantity of wood you will have available.
Below is a statement Chris prepared that explains the vehicle choice very well .